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Diffstat (limited to 'Source/Core/VideoCommon/Src/PixelShaderGen.cpp')
-rw-r--r--Source/Core/VideoCommon/Src/PixelShaderGen.cpp92
1 files changed, 48 insertions, 44 deletions
diff --git a/Source/Core/VideoCommon/Src/PixelShaderGen.cpp b/Source/Core/VideoCommon/Src/PixelShaderGen.cpp
index 918b8237d6..4187c44d0f 100644
--- a/Source/Core/VideoCommon/Src/PixelShaderGen.cpp
+++ b/Source/Core/VideoCommon/Src/PixelShaderGen.cpp
@@ -1,19 +1,6 @@
-// Copyright (C) 2003 Dolphin Project.
-
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, version 2.0.
-
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License 2.0 for more details.
-
-// A copy of the GPL 2.0 should have been included with the program.
-// If not, see http://www.gnu.org/licenses/
-
-// Official SVN repository and contact information can be found at
-// http://code.google.com/p/dolphin-emu/
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
#include <stdio.h>
#include <cmath>
@@ -32,7 +19,7 @@
//
// color for this stage (alpha, color) is given by bpmem.tevorders[0].colorchan0
// konstant for this stage (alpha, color) is given by bpmem.tevksel
-// inputs are given by bpmem.combiners[0].colorC.a/b/c/d << could be current chan color
+// inputs are given by bpmem.combiners[0].colorC.a/b/c/d << could be current channel color
// according to GXTevColorArg table above
// output is given by .outreg
// tevtemp is set according to swapmodetables and
@@ -44,7 +31,7 @@ template<class T> static void WriteFog(T& out, pixel_shader_uid_data& uid_data);
static const char *tevKSelTableC[] = // KCSEL
{
- "1.0f,1.0f,1.0f", // 1 = 0x00
+ "1.0f,1.0f,1.0f", // 1 = 0x00
"0.875f,0.875f,0.875f", // 7_8 = 0x01
"0.75f,0.75f,0.75f", // 3_4 = 0x02
"0.625f,0.625f,0.625f", // 5_8 = 0x03
@@ -153,7 +140,7 @@ static const char *tevCInputTable[] = // CC
"float3(0.5f, 0.5f, 0.5f)", // HALF
"(konsttemp.rgb)", //"konsttemp.rgb", // KONST
"float3(0.0f, 0.0f, 0.0f)", // ZERO
- ///aded extra values to map clamped values
+ ///added extra values to map clamped values
"(cprev.rgb)", // CPREV,
"(cprev.aaa)", // APREV,
"(cc0.rgb)", // C0,
@@ -183,7 +170,7 @@ static const char *tevAInputTable[] = // CA
"rastemp", // RASA,
"konsttemp", // KONST, (hw1 had quarter)
"float4(0.0f, 0.0f, 0.0f, 0.0f)", // ZERO
- ///aded extra values to map clamped values
+ ///added extra values to map clamped values
"cprev", // APREV,
"cc0", // A0,
"cc1", // A1,
@@ -346,10 +333,10 @@ void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType, u
if (ApiType == API_OPENGL)
{
- out.Write("out float4 ocol0;\n");
+ out.Write("COLOROUT(ocol0);\n");
if (dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
- out.Write("out float4 ocol1;\n");
-
+ out.Write("COLOROUT(ocol1);\n");
+
if (per_pixel_depth)
out.Write("#define depth gl_FragDepth\n");
out.Write("float4 rawpos = gl_FragCoord;\n");
@@ -416,17 +403,20 @@ void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType, u
per_pixel_depth ? "\n out float depth : SV_Depth," : "");
}
- out.Write(" in float4 colors_0 : COLOR0,\n");
- out.Write(" in float4 colors_1 : COLOR1");
+ // "centroid" attribute is only supported by D3D11
+ const char* optCentroid = (ApiType == API_D3D11 ? "centroid" : "");
+
+ out.Write(" in %s float4 colors_0 : COLOR0,\n", optCentroid);
+ out.Write(" in %s float4 colors_1 : COLOR1", optCentroid);
// compute window position if needed because binding semantic WPOS is not widely supported
if (numTexgen < 7)
{
- for (unsigned int i = 0; i < numTexgen; ++i)
- out.Write(",\n in float3 uv%d : TEXCOORD%d", i, i);
- out.Write(",\n in float4 clipPos : TEXCOORD%d", numTexgen);
+ for (int i = 0; i < numTexgen; ++i)
+ out.Write(",\n in %s float3 uv%d : TEXCOORD%d", optCentroid, i, i);
+ out.Write(",\n in %s float4 clipPos : TEXCOORD%d", optCentroid, numTexgen);
if(g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
- out.Write(",\n in float4 Normal : TEXCOORD%d", numTexgen + 1);
+ out.Write(",\n in %s float4 Normal : TEXCOORD%d", optCentroid, numTexgen + 1);
out.Write(" ) {\n");
}
else
@@ -629,17 +619,25 @@ void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType, u
out.Write("\tocol0 = prev;\n");
}
- // On D3D11, use dual-source color blending to perform dst alpha in a
- // single pass
+ // Use dual-source color blending to perform dst alpha in a single pass
if (dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
{
out.SetConstantsUsed(C_ALPHA, C_ALPHA);
- // Colors will be blended against the alpha from ocol1...
- out.Write("\tocol1 = prev;\n");
+ if(ApiType & API_D3D9)
+ {
+ // alpha component must be 0 or the shader will not compile (Direct3D 9Ex restriction)
+ // Colors will be blended against the color from ocol1 in D3D 9...
+ out.Write("\tocol1 = float4(prev.a, prev.a, prev.a, 0.0f);\n");
+ }
+ else
+ {
+ // Colors will be blended against the alpha from ocol1...
+ out.Write("\tocol1 = prev;\n");
+ }
// ...and the alpha from ocol0 will be written to the framebuffer.
out.Write("\tocol0.a = " I_ALPHA"[0].a;\n");
}
-
+
out.Write("}\n");
if (text[sizeof(text) - 1] != 0x7C)
@@ -760,10 +758,14 @@ static void WriteStage(T& out, pixel_shader_uid_data& uid_data, int n, API_TYPE
out.Write("float2 indtevtrans%d = " I_INDTEXMTX"[%d].ww * uv%d.xy * indtevcrd%d.yy;\n", n, mtxidx, texcoord, n);
}
else
+ {
out.Write("float2 indtevtrans%d = float2(0.0f, 0.0f);\n", n);
+ }
}
else
+ {
out.Write("float2 indtevtrans%d = float2(0.0f, 0.0f);\n", n);
+ }
// ---------
// Wrapping
@@ -841,7 +843,9 @@ static void WriteStage(T& out, pixel_shader_uid_data& uid_data, int n, API_TYPE
SampleTexture<T>(out, "textemp", "tevcoord", texswap, texmap, ApiType);
}
else
+ {
out.Write("textemp = float4(1.0f, 1.0f, 1.0f, 1.0f);\n");
+ }
if (cc.a == TEVCOLORARG_KONST || cc.b == TEVCOLORARG_KONST || cc.c == TEVCOLORARG_KONST || cc.d == TEVCOLORARG_KONST
@@ -1124,7 +1128,7 @@ static void WriteAlphaTest(T& out, pixel_shader_uid_data& uid_data, API_TYPE Api
// or after texturing and alpha test. PC GPUs have no way to support this
// feature properly as of 2012: depth buffer and depth test are not
// programmable and the depth test is always done after texturing.
- // Most importantly, PC GPUs do not allow writing to the z buffer without
+ // Most importantly, PC GPUs do not allow writing to the z-buffer without
// writing a color value (unless color writing is disabled altogether).
// We implement "depth test before texturing" by discarding the fragment
// when the alpha test fail. This is not a correct implementation because
@@ -1143,14 +1147,14 @@ static void WriteAlphaTest(T& out, pixel_shader_uid_data& uid_data, API_TYPE Api
static const char *tevFogFuncsTable[] =
{
- "", //No Fog
- "", //?
- "", //Linear
- "", //?
- "\tfog = 1.0f - pow(2.0f, -8.0f * fog);\n", //exp
- "\tfog = 1.0f - pow(2.0f, -8.0f * fog * fog);\n", //exp2
- "\tfog = pow(2.0f, -8.0f * (1.0f - fog));\n", //backward exp
- "\tfog = 1.0f - fog;\n fog = pow(2.0f, -8.0f * fog * fog);\n" //backward exp2
+ "", // No Fog
+ "", // ?
+ "", // Linear
+ "", // ?
+ "\tfog = 1.0f - pow(2.0f, -8.0f * fog);\n", // exp
+ "\tfog = 1.0f - pow(2.0f, -8.0f * fog * fog);\n", // exp2
+ "\tfog = pow(2.0f, -8.0f * (1.0f - fog));\n", // backward exp
+ "\tfog = 1.0f - fog;\n fog = pow(2.0f, -8.0f * fog * fog);\n" // backward exp2
};
template<class T>
@@ -1180,7 +1184,7 @@ static void WriteFog(T& out, pixel_shader_uid_data& uid_data)
// ze *= x_adjust
// this is completely theoretical as the real hardware seems to use a table intead of calculating the values.
uid_data.fog.RangeBaseEnabled = bpmem.fogRange.Base.Enabled;
- if(bpmem.fogRange.Base.Enabled)
+ if (bpmem.fogRange.Base.Enabled)
{
out.SetConstantsUsed(C_FOG+2, C_FOG+2);
out.Write("\tfloat x_adjust = (2.0f * (clipPos.x / " I_FOG"[2].y)) - 1.0f - " I_FOG"[2].x;\n");
generated by cgit v1.2.3 (git 2.25.1) at 2026-10-09 18:51:01 +0000